A tank has a Normally Open Level Switch is set to turn on a pump to drain the tank at a level of $80\%.$ The same switch is used to turn off the pump at low level for level control. The switch has a deadband of $2\%.$ When the control is working, the tank level will generally be between:

None Listed

$80\%$ and $78\%$

Exactly at $80\%$

$79\%$ and $81\%$

$78\%$ and $82\%$